Drive apparatus for hybrid vehicle
First Claim
1. A drive apparatus for a hybrid vehicle, comprising:
- a first motor generator that functions as one of a motor and a generator;
a power splitting mechanism portion that divides power generated by an engine into power for the first motor generator and power for a driven wheel;
a second motor generator which is arranged on a side of the first motor generator opposite the engine, which functions as one of a motor and a generator, which generates power for driving the driven wheel that is different from the power from the engine, and which has an outside diameter smaller than an outside diameter of the first motor generator; and
a speed reducing mechanism portion which is arranged on a side of the second motor generator opposite the engine, which has an outside diameter smaller than an outside diameter of the second motor generator, and which reduces a rotation speed of the second motor generator,wherein the speed reducing mechanism portion is operable to reduce only a rotation speed of the second motor generator when the power generated by the engine is transmitted to the driven wheel.
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Abstract
A drive apparatus for a hybrid vehicle is provided with a first motor generator, a power splitting mechanism portion, and a second motor generator. The first motor generator functions mainly as a generator. The power splitting mechanism portion divides the power generated by the engine into power for the first motor generator and power for driven wheels. The second motor generator has an outside diameter that is smaller than the outside diameter of the first motor generator and is arranged on the side of the first motor generator opposite the engine. Further, a speed reducing mechanism portion which has an outside diameter smaller than the outside diameter of the second motor generator and which reduces the rotation speed of the second motor generator is provided on the side of the second motor generator opposite the engine.
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Citations
50 Claims
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1. A drive apparatus for a hybrid vehicle, comprising:
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a first motor generator that functions as one of a motor and a generator; a power splitting mechanism portion that divides power generated by an engine into power for the first motor generator and power for a driven wheel; a second motor generator which is arranged on a side of the first motor generator opposite the engine, which functions as one of a motor and a generator, which generates power for driving the driven wheel that is different from the power from the engine, and which has an outside diameter smaller than an outside diameter of the first motor generator; and a speed reducing mechanism portion which is arranged on a side of the second motor generator opposite the engine, which has an outside diameter smaller than an outside diameter of the second motor generator, and which reduces a rotation speed of the second motor generator, wherein the speed reducing mechanism portion is operable to reduce only a rotation speed of the second motor generator when the power generated by the engine is transmitted to the driven wheel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. A drive apparatus for a hybrid vehicle, comprising:
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a first motor generator that functions as one of a motor and a generator; a power splitting mechanism portion that divides power generated by an engine into power for the first motor generator and power for a driven wheel; a second motor generator which is arranged on a side of the first motor generator opposite the engine, which functions as one of a motor and a generator, which generates power for driving the driven wheel that is different from the power from the engine, and which has an outside diameter smaller than an outside diameter of the first motor generator; and speed reducing means arranged on a side of the second motor generator opposite the engine, which has an outside diameter smaller than an outside diameter of the second motor generator, for reducing a rotation speed of the second motor generator, wherein the speed reducing means is operable to reduce only a rotation speed of the second motor generator when the power generated by the engine is transmitted to the driven wheel. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50)
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Specification